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p style="text-align: center;">tổ yến sào tam khoe use mud to hold their nest together. The best known mud nest is the barn swallow (Hirundo rustica). Cliff swallows, which build their nests on cliffs and other vertical surfaces, also use mud for their nests. This mud, called guano, is a thick, sticky material that the swallows mix with grass, bark hair or feathers to form the nest. These nests are very durable and can stick to cliff sides, bridges or the walls of buildings. Another type of nest is the scrape nest. This is a hole scraped into the ground. Birds that use this kind of nest include the Killdeer (Charadrius vociferous), mallard duck (Anas platyrhynchos) and great black-backed gull (Larus marinus). Predators can easily see these shallow holes, which means that predators often nab the chicks before they hatch. To help prevent this, these birds often hobble around the area of their nest, pretending to have a wounded wing, in an attempt to lure invading predators away from their nest. Other kinds of nests made with mud include the house martin (Martinus pygmaeus) and the winter wren (Wrena aureola). The house martin uses a technique called sanding, in which it builds up layers of sand on the outside of its nest to create a ring of protection. This helps keep the eggs warm and prevents predators from reaching them. A third type of nest made with mud is the cup-shaped nest of the swallow. These are typically built in colonies and can be found on cliffs or the eaves of buildings. The swallows work together to build the nest, which is technically a form of adherent cup, by depositing mud pellets from their beaks into well-formed nuggets that then bond with each other to form strong walls. Although these birds are important in maintaining populations of insects, their nesting habits can cause problems for homeowners. Mud nests can cling to structures, creating unsightly stains and potentially causing structural damage. In addition, the birds can be noisy and attract insect pests to the property. To help support these important birds, try leaving out natural debris in your garden to encourage them to nest in your yard. If you rake up moss from your lawn, leave it out instead of composting it and if you weed your garden, consider leaving some of the stalks behind to give the birds something to use for their nests. You can also hang up a ball nesting dispenser from vines that the birds will find attractive and easy to use. You can even buy these dispensers from some garden centers. These dispensers will also help to control the population of swallows and other bird species that can become nuisances. For those who are unable to accommodate swallows, there are other humane ways to discourage them from using your property, including installing an owl or hawk decoy or using wiring or a slant board to block access to the site of your structure. <a href="https://tamkhoe.com/">yến sào khánh hòa</a></p>
